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Greenhouse Gases

Climeworks raises $75 million for carbon capture

by Melody M. Bomgardner
June 13, 2020 | A version of this story appeared in Volume 98, Issue 23
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Most Popular in Environment

 

This photo shows a large stack of Climeworks machines, which look like fans.
Credit: Climeworks
Climeworks machines remove CO2 directly from ambient air.

The Swiss start-up Climeworks has raised $75 million from undisclosed investors to expand its capacity to remove carbon dioxide from air. The company’s modular direct air capturemachines draw in air with fans, then capture CO2 on the surface of a selective filter material. A temperature increase releases the trapped CO2, which can be stored or used as a raw material.

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